Documentation Update: Add a section for how to add the render_inline helpers to RSpec tests (#2162)

* Add a section for hwo to add the render_inline helpers to View Component tests

Source: https://stackoverflow.com/questions/70041733/integrating-viewcomponent-with-rspec

* Apply suggestions from code review

* Adding a note on the documentation update for RSpec.

Fixing lint callout for double quoted strings instead of single

* Update docs/CHANGELOG.md

---------

Co-authored-by: Joel Hawksley <[email protected]>

Author: rylanb

docs/CHANGELOG.md

@@ -10,6 +10,10 @@ nav_order: 5
 
 ## main
 
+* Updates testing docs to include an example of how to use with RSpec.
+
+    *Rylan Bowers*
+
 * Add `--skip-suffix` option to component generator.
 
     *KAWAKAMI Moeki*

docs/guide/testing.md

@@ -30,6 +30,21 @@ _Note: `assert_selector` only matches on visible elements by default. To match o
 
 For debugging purposes, the `rendered_content` test helper outputs the rendered HTML.
 
+## Use with RSpec
+
+To enable ViewComponent test helpers in RSpec, add:
+
+```ruby
+# spec/rails_helper.rb
+require "view_component/test_helpers"
+
+RSpec.configure do |config|
+  # ...
+
+  config.include ViewComponent::TestHelpers, type: :component
+end
+```
+
 ## Testing Slots
 
 ```ruby